Vault-cover.



H. SELLHEIM.

VAULT COVER. APPLICATION FILED APR.14,1910.

Patented Jul 16, 1912.

WITNESSES:

INVENTOR 1 fle/z/y die/MP1;

ATTORNEYS another form is shown in Fig. 4, in which the projections or corrugations, indicated -at'12 areformed with their inner edges cohold on the cover.

', extensive with the ring member 6, and their outer and top surfaces merging one into the other in the form of a somewhat spherical face. These lugs 12 are spaced apart from each other by suitable intervals. On certain occasions when the openings 2, and thus t-he lenses 3 with their retaining mem- 'bers,"are placed in close juxtaposition, there mediate the lenses 3.- I have illustrated one type of these members in Figs. 1' and 2, which may be in the form of suitable lugs or rivets 13, secured in suitable openings in the plate 1 at suitable spaced intervals 7 one from the other.

" sired number of openings 2. Lenses 3 of a The utility of the device will be readily understood when takeninconnection with the above description. In assembling the device, the plate 1 of the required size. and

dimensions suitable-to 'cover the opening above the vault, provided with the desize suitable to the openings 2 are then securely clamped in membeisnfi and 6,'w ich engage-the. plate 1 lace by the retaining on its upper and lower surfaces, and also securely clamp the lenses 3 between them. If for any reason, such as the breakage of one 'or more of the lenses 3, it is desired to replace these lenses, it can be readily done by unscrewing the members 5 and 6 and putting in new lenses in place of the old or broken ones. '7

While I have shown several embodiments of my invention, I do not wish to be limited to the specific details thereof, but desire to be protected in various changes,

modifications and alterations whi h I may make within the scope of the appended claim. I

-Having thus described my invention, I claim as new and desire to secure by Letters Patent 2-- v I A vault light, comprising a lens havinga bead thereon, a bot-tom member having HEN RY SELLHEIM. Witnesses: i

. HORATIO WHITLNG,

PHILIP D. RoLLHA'Us.

'coplel otft his patent'my be obtained for five cents each, by addressing the Commissioner of Iatents,

I i Washington, I). c. 

